##     静态库  
#mytest:mytest.c
#	gcc -o $@ $^ -I ./my_lib -L ./my_lib -l -math
#.PHONY:clean
#clean:
#	rm -f mytest


       #动态库
mytest:mytest.c
	gcc -o $@ $^ -I ./my_lib_so -L ./my_lib_so -l -math
.PHONY:clean
clean:
	rm -f mytest


